ocasional dosing w/ over the counter ferts. Lately it's been nutri fins " plant grow" also use flourish and excell
with my relatively heavy bio load in my tank I have found it almost not necessary to fertilize and still have healthy growing plants. I don't like my plants growing to fast.

I have learned many things from this forum. one of the most important things i have learned on my own is "keep it simple" be observant to the daily conditions in your tank and develop some good instincts in your reactions